Pathology Complete deficiency of UDP glucoronyl transferase (UGT) is seen in: A Criggler - Najjar Type I B Criggler - Najjar Type II C Gilbe's syndrome D Dubin-Johnson syndrome 💡 Explanation Complete deficiency of UDP glucoronyl transferase (UGT) is seen in: ✓ Correct Answer: A. Criggler - Najjar Type I